<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <div id="app">
    <h1 v-if="isShow" id="ifid">abc</h1>
    <!-- style="display: none -->
    <h1 v-show="isShow" id="showid">abc</h1>
  </div>
  <script src="./js/vue.js"></script>
  <script>
    const app = new Vue({
      el: "#app",
      methods: {
        
      },
      data: {
        isShow: true,
      },
    })
  </script>
</body>
</html>